dictionary.pt
light-year
nounmasculinetechnicalcommon/ɐnuluz/a·no-luz
Definition
1Unit of length used in astronomy, equal to the distance light travels in a vacuum in one Julian year (about 9.46 trillion kilometers).
Usage examples
“The nearest star to the Sun is about 4.2 light-years away.”
“Current technology is light-years ahead of what we had two decades ago.”
Common combinations
light-year distancelight-years away
Idiomatic expressions
- to be light-years away from (something/someone)